A sequence of regular polygons starts with a square, and each next polygon has 2 more sides than the one before. What is the 4th shape in this sequence?
- A.Octagon
- B.Nonagon
- C.Decagon ✓
- D.Dodecagon
Explanation: Square (4 sides) → Hexagon (6) → Octagon (8) → Decagon (10). The 4th shape is a decagon.
Class 6 IMO Mathematics Olympiad practice · Algebraic Thinking · Patterns in Mathematics
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